Space exploration began with the launch of Sputnik and Astrophysics was born as the application of physics to the phenomena observed by Astronomy, which etymologically means laws of the stars.
There are 2759 entries in this glossary.| Term | Definition |
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| Phekda Phecda; Gamma Ursae Majoris; |
The third-brightest star in the constellation Ursa Major. It is an A star of magnitude 2.4.
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